I thought it was supposed to be 90k for timing belts, and Rhorob's getting close to that. He wanted to wait another 10k so that's about 100k... It's all about luck - they aren't guaranteed to break at 106k.

What's important is that there really aren't any warning signs for a timing belt. Just because Rhorob knows that 'it purrs beautifully' doesn't mean anything as far as the timing belt.